| 摘要 |
<p>To control the power supplied to a resonant cavity of the accelerator to be always at the resonance frequency, the system consists of a signal pick-up coil (12) inserted in the resonant cavity (1,2), a voltage-controlled oscillator assembly (10,15), a phase detector (13) for detecting a phase difference between a signal picked up from the cavity (1,2) by the signal pick-up coil (12) and an output from the voltage-controlled oscillator assembly (10,15). An output from the phase detector (13) controls the voltage-controlled oscillator assembly (10,15) so as to make it oscillate at a frequency equal to a resonance frequency of the resonant cavity (1,2).</p> |
